{"id":1068,"date":"2020-06-03T09:59:38","date_gmt":"2020-06-03T09:59:38","guid":{"rendered":"https:\/\/aluminiumceramicfiber.com\/?p=1068"},"modified":"2020-10-28T01:34:10","modified_gmt":"2020-10-28T01:34:10","slug":"aluminum-casting-loss","status":"publish","type":"post","link":"https:\/\/www.aluminiumceramicfiber.com\/ar\/aluminum-casting-loss\/","title":{"rendered":"\u062e\u0633\u0627\u0631\u0629 \u0635\u0628 \u0627\u0644\u0623\u0644\u0648\u0645\u0646\u064a\u0648\u0645"},"content":{"rendered":"<p>The main external manifestations of aluminum casting loss can be divided into two parts: one is pure aluminum ash form, and the other is bulk aluminum and defective aluminum and aluminum slag.<\/p>\n<p>According to the statistics of the melting casting workshop, the non-recyclable pure aluminum ash accounts for about 90% of the casting losses (oxidation, burning and slag formation), and other factors account for about 10%. According to other factors that occupy 10%, further data statistical analysis is conducted, which is mainly caused by the secondary burn loss of bulk aluminum and inferior aluminum and the aluminum content in aluminum ash. Therefore, the internal main causes of casting loss are oxidative burning loss, secondary burning loss such as defective aluminum, and aluminum content in aluminum ash.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3721\" src=\"https:\/\/aluminiumceramicfiber.com\/wp-content\/uploads\/2020\/06\/Aluminum-Casting-Loss.jpg\" alt=\"\u062e\u0633\u0627\u0631\u0629 \u0635\u0628 \u0627\u0644\u0623\u0644\u0648\u0645\u0646\u064a\u0648\u0645\" width=\"600\" height=\"500\" srcset=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2020\/06\/Aluminum-Casting-Loss.jpg 600w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2020\/06\/Aluminum-Casting-Loss-300x250.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u062d\u062a\u0648\u064a\u0627\u062a<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u062a\u0628\u062f\u064a\u0644<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.aluminiumceramicfiber.com\/ar\/aluminum-casting-loss\/#Aluminum_Casting_Loss\" >\u062e\u0633\u0627\u0631\u0629 \u0635\u0628 \u0627\u0644\u0623\u0644\u0648\u0645\u0646\u064a\u0648\u0645<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.aluminiumceramicfiber.com\/ar\/aluminum-casting-loss\/#Causes_of_Aluminum_Casting_Damage\" >Causes of Aluminum Casting Damage<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Aluminum_Casting_Loss\"><\/span>\u062e\u0633\u0627\u0631\u0629 \u0635\u0628 \u0627\u0644\u0623\u0644\u0648\u0645\u0646\u064a\u0648\u0645<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The principle of aluminum oxidation burning can be further understood by the following chemical equation: 4Al+3O\u2082=2Al\u2082O\u2083<\/p>\n<p>Thermodynamic research on metal oxidation shows that the metal oxidation trend, the oxidation order, and oxidation degree of each alloy element are determined by the affinity of the metal and oxygen, the composition, temperature and pressure of the alloy. The greater the affinity of metal and oxygen, the greater the tendency of its oxidation degree and the higher the oxidation degree. The higher the temperature, the greater the affinity of the metal and oxygen, the greater the tendency of its oxidation degree, the higher the oxidation degree. The smaller the decomposition pressure of the oxide, the greater the affinity of the metal and oxygen, the greater the tendency of the oxidation degree, the higher the oxidation degree.<\/p>\n<p>In the melting temperature range, aluminum has a great affinity with oxygen and is easily oxidized. After oxidation, an Al\u2082O\u2083 film is formed on the surface, and when it is higher than 500\u2103, it is meta-stable r-Al\u2082O\u2083. During the transition from this metastable oxide film to a stable oxide film, volume shrinkage occurs and oxidation and cracking further occur. As the temperature of the molten aluminum increases and the time increases, the faster the oxide film grows, the amount and thickness of the oxide also increase significantly.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Causes_of_Aluminum_Casting_Damage\"><\/span>Causes of Aluminum Casting Damage<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The factors affecting casting loss are:<br \/>\n\u2460Liquid aluminum temperature; \u2461Strength of contact between aluminum liquid and oxygen; \u2462Aluminum content in aluminum dross; \u2463Aluminum liquid brought out by dross; \u2464How much defective aluminum and bulk aluminum; \u2465Other losses.<\/p>\n<p>\u062a\u0642\u0646\u064a\u0627\u062a \u0627\u0644\u0625\u0639\u0644\u0627\u0646\u0627\u062a <a href=\"https:\/\/www.aluminiumceramicfiber.com\/ar\/portfolio\/non-sodium-granulated-flux\/\">\u062a\u062f\u0641\u0642 \u0627\u0644\u062a\u0643\u0631\u064a\u0631<\/a> can make the aluminum water and slag separate fully. The <a href=\"https:\/\/www.aluminiumceramicfiber.com\/ar\/aluminum-refining-agent\/\">\u0639\u0627\u0645\u0644 \u062a\u0643\u0631\u064a\u0631<\/a> can effectively reduce the aluminum in slag, and reduce the casting loss.<\/p>","protected":false},"excerpt":{"rendered":"<p>The main external manifestations of aluminum casting loss can be divided into two parts: one is pure aluminum ash form, and the other is bulk aluminum and defective aluminum and aluminum slag. According to the statistics of the melting casting workshop, the non-recyclable pure aluminum ash accounts for about 90% of the casting losses (oxidation, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3721,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86],"tags":[1093,1094],"class_list":["post-1068","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-aluminum-casting-loss","tag-aluminum-melting-casting"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Aluminum Casting Loss, Aluminum Melting Casting<\/title>\n<meta name=\"description\" content=\"The main external manifestations of aluminum casting loss can be divided into two parts: pure aluminum ash, and aluminum slag.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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